<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>mini-vue</title>
</head>
<body>
  <div id="app">
    123
  </div>
  <script src="./vue/observer.js"></script>
  <script src="./vue/vue.js"></script>
  <script >
    let vm = new Vue({
      el: '#app',
      data: {
        msg: 'ttq',
        count: 12,
        person: {
          name: 'ttq'
        }
      }
    })
    console.log(vm);
  </script>
</body>
</html>